7. 船舶管路系統最常使用的接頭為(A)法蘭接頭(B)螺紋接頭(C)膨脹接頭(D)可緣接頭

1. What is the article mainly about? (A)Art is everywhere in our lives and everyone can be a unique artist in some way. (B)People with lower social status can make a fortune and earn respect through education. (C)Seemingly untidy, worthless things can turn into something valuable and positive. (D)Helping others is more gratifying and meaningful than personal achievements.